Rabbeinu Yonah

Klalim

1. Rabbeinu Yonah was a cousin of the Ramban, and his daughter married Shlomo, the Ramban's son. He was the rebbe of the Rashba.
2. While we have his Chiddushim on some Masechtot, the notes of his Talmidim are published on the Rif in Berachot as well as Avodah Zarah (published as a separate volume).
3. His commentary on Bava Batra is called "Aliyot deRabbeinu Yonah," because each sections ends with a summary that opens with "עלה בידינו."
4. A classic work of Mussar, Sha'arei Teshuva is the only one of the seemingly many She'arim written by Rabbeinu Yonah.

Further Reading

1. Later Rishonim III: Rabbeinu Yonah